Inhibition of aqueous degradation of Y1Ba2Cu3O7−x high-T c superconductor by nitrogen ion implantation

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Abstract
The influence of 60‐keV N+2 ion implantation on the aqueous degradation of the Y1Ba2Cu3O7−x high‐Tc superconductor is studied by the small‐angle x‐ray diffraction technique. Structural depth profiling is performed by registering the x‐ray data at several small angles of incidence between 0.3° and 10.0° within Seeman–Bohlin geometry. Examination of samples implanted at a dose value of 3×1017 ions/cm2 and subjected to different aqueous treatments reveals that implantation arrests the degradation process and imparts structural stability to the superconductor. Resistivity temperature data are also provided for specific cases of interest.